[5f+6]+[2f-1]=

Solution for [5f+6]+[2f-1]= equation:

Simplifying
[5f + 6] + [2f + -1] = 0

Reorder the terms:
[6 + 5f] + [2f + -1] = 0

Remove brackets around [6 + 5f]
6 + 5f + [2f + -1] = 0

Reorder the terms:
6 + 5f + [-1 + 2f] = 0

Remove brackets around [-1 + 2f]
6 + 5f + -1 + 2f = 0

Reorder the terms:
6 + -1 + 5f + 2f = 0

Combine like terms: 6 + -1 = 5
5 + 5f + 2f = 0

Combine like terms: 5f + 2f = 7f
5 + 7f = 0

Solving
5 + 7f = 0

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Add '-5' to each side of the equation.
5 + -5 + 7f = 0 + -5

Combine like terms: 5 + -5 = 0
0 + 7f = 0 + -5
7f = 0 + -5

Combine like terms: 0 + -5 = -5
7f = -5

Divide each side by '7'.
f = -0.7142857143

Simplifying
f = -0.7142857143